
<!DOCTYPE html>
<html>
    <head>
        
        <meta http-equiv="content-type" content="text/html;charset=utf-8"/>
        <title>login</title>
    </head>
    <body>
        <form action="do_login.php" method="POST">
    <div>
        用户名:<input type="text" name="Username" value="dr" placeholder="请输入"/>
    </div>
    <div>
        密码：<input type="password" name="password" value=""/>
    </div>
    <input type="submit" name="submit" value="登录"/>
    </form>
    </body>
</html>